/Engine/Source/Runtime/TypedElementFramework/Public/Elements/Interfaces/TypedElementDataStorageInterface.h
Adds and removes the provided column types from the provided row. This is typically more efficient than individually adding and removing columns as well as being faster than adding and removing columns separately.
bool AddRemoveColumns ( TypedElementRowHandle Row, TConstArrayView< const [UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) * > ColumnsToAdd, TConstArrayView< const [UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) * > ColumnsToRemove )